<html>
<head>
    <title>登录</title>
    <meta name="viewport" content="width=device-width,initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no"/>
    <meta http-equiv="refresh" content="3;URL=/account">
</head>
<body>
    <div align="center">
        <p>未登录或登录状态已过期。</p>
        <p>3秒之后自动跳转登录页面…</p>
</body>
</html>